X-ray developments (1 янв 1920 г. – 9 июн 1940 г.)
Описание:
Most of the early X-ray work was performed by doctors and the departments were often combined with electro-therapeutic departments. However, from about 1903 lay X-ray operators were appointed as assistants. Gradually more and more lay X-ray operators were appointed, training courses were set up and the Society of Radiographers was formed.
Добавлено на ленту времени:
History of x-rays
Дата:
